Here are three classical cases of miai thinking in the fuseki. They might not be high level thinking, but I (Klaus) think they illustrate a point which beginners should think about.
After , a and b are Miai in order to ensure a base for white on the upper side. (see wedge for more explanations)
here the possible extensions around a and b can be seen as Miai as well.
And again: a and b can both provide a secure base.